The race for quantum supremacy: pushing the classical limit for photonic hardware

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2019,（1）
• 页码范围: 2-3
• 页数: 2页
• 语种: 英文
• DOI: 10.1093/nsr/nwy125

摘要

The strong efforts towards the realization of scalable quantum computing are motivated by the promise of super-polynomial speed-up in several computational tasks.A first fundamental step in this route is to provide concrete evidence of'quantum supremacy'.Such a regime is obtained when a quantum device is capable of solving a specific problem faster than the best classical hardware.A serious attempt to provide a first demonstration of quanturn speed-up with affordable resources is represented by boson sampling [1,2],a non-universal quantum-computational protocol exploiting indistinguishable single photons and linear optical devices.